TW201722673A - Heat staking machine for plastic material - Google Patents

Abstract

A heat staking machine for plastic material includes a machine housing, a supporting frame arranged on the machine housing, an elevating mechanism arranged on the supporting frame, an adjustable carrier, and a plurality of heating modules. The elevating mechanism has an elevating rod which extended into the supporting frame. The adjustable carrier is disposed in the supporting frame. The elevating rod of the elevating mechanism is connected to the adjustable carrier. The adjustable carrier has a plurality of connecting parts. The heating modules are arranged under the adjustable carrier. Each heating module has a top end which is dismountably connected to one of the connecting parts.

Description

Plastic hot melt machine

The present invention relates to a plastic hot melt machine, and more particularly to a hot melt machine for welding a plurality of plastic workpieces.

A heating machine (Welding Machine) is a commonly used machine in industrial production. The workpiece is joined to another object by heating to melt the joint of the workpiece, for example, for plastic fast welding, plastic column riveting, and screw embedding. , plastic products spot welding, plastic material head removal and plastic column molding.

Conventional hot melt machines are used to fix the base of the fixture to be hot-melted. In addition, the heating head of the hot melt machine is usually fixed at a specific position, so that the hot melt machine is often only suitable for one type of workpiece. When machining a workpiece to be hot melted, a fixture base of a specific structure corresponding to its shape is required. When processing another shape of the component to be hot melted, another corresponding fixture base must be replaced. The fixture base of the conventional hot melt machine cannot be reused, which increases the processing equipment cost of the product.

The embodiment of the invention provides a plastic hot melt machine, wherein the position of the heating component can be independently adjusted, and the position of the heating component can be adjusted according to the requirements of different workpieces, thereby being applicable to different workpieces and reducing the number of hot-melting fixtures.

In order to achieve the above, a plastic hot melt machine provided by one embodiment of the present invention includes a chassis, a carrying frame disposed on the chassis, and a A lifting mechanism on the carrying frame, an adjustable carrier, and a plurality of heating components. The lifting mechanism has a lifting rod that extends into the carrying frame. The adjustable carrier is disposed inside the carrying frame, and the lifting rod of the lifting mechanism is connected to the adjustable carrier, and the adjustable carrier has a plurality of connecting portions. A plurality of heating assemblies are disposed below the adjustable carrier, and a top end of each of the heating assemblies is detachably coupled to one of the connecting portions.

The beneficial effects of the present invention may be that the plastic hot melt machine provided by the embodiment of the present invention has an adjustable carrier plate and a heating assembly, and the positions of the heating assemblies can be adjusted according to the requirements of different workpieces. This embodiment can be applied to different workpieces to reduce the number of hot-melt fixtures.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

100‧‧‧Plastic hot melt machine

20‧‧‧Chassis

200‧‧‧Microprocessor

202‧‧‧Control interface device

204‧‧‧Input device

21‧‧‧ top board

210‧‧‧Assembled holes

211, 212‧‧‧ security button

22‧‧‧ front panel

222, 224‧‧ ‧ thermometer

223‧‧‧Time meter

24‧‧‧ rear panel

241‧‧‧Power switch

242‧‧‧Power socket

243‧‧‧Pneumatic control valve

243s‧‧‧Air source pressure detector

25‧‧‧Tray sensor

40‧‧‧ Carrying rack

41‧‧‧Side support

42‧‧‧Top support

43‧‧‧Adjustable carrier

430‧‧‧Connecting Department

45‧‧‧Power bed

452‧‧‧Transmission unit

452d‧‧‧Servo drive

452m‧‧‧Servo motor

46‧‧‧Installation platform

47‧‧‧Tray base

48‧‧‧Safety sensor

60‧‧‧ Lifting mechanism

61‧‧‧Guide components

62‧‧‧Power components

620‧‧‧Solenoid valve

620d‧‧‧Solenoid valve driver

621‧‧‧ lifting rod

621s‧‧‧Cylinder position detector

81‧‧‧heating components

811‧‧‧Transfer joint

8110‧‧‧Adjustment hole

8112‧‧‧Manual nut

812‧‧‧ Connecting rod

813‧‧‧ 固定座

814‧‧‧Heating head

814d‧‧‧Fever drive

814t‧‧‧temperature sensor

8141‧‧‧Hot head

8142‧‧‧Feather core

8143‧‧‧Shell

83‧‧‧ Positioning bar

831‧‧‧Transfer joint

8310‧‧‧Adjustment hole

8312‧‧‧Manual nut

832‧‧‧Press

W‧‧‧Workpiece

Figure 1 is a perspective view of a plastic hot melt machine of the present invention.

Figure 2 is a front elevational view of the plastic hot melt machine of the present invention.

2A is a cross-sectional view of the heating assembly of the present invention taken along line IIA-IIA.

Figure 3 is another perspective view of the plastic hot melt machine of the present invention.

Figure 4 is a rear elevational view of the plastic hot melt machine of the present invention.

Figure 5 is a block diagram of the system of the plastic hot melt machine of the present invention.

Please refer to FIG. 1 and FIG. 2, which are perspective views and front views of a plastic hot melt machine of the present invention. The present invention provides a plastic hot melt machine 100, which includes a chassis 20, a carrier frame 40 is disposed on the chassis 20, a lifting mechanism 60 is disposed on the carrier frame 40, and an adjustable carrier plate 43 is disposed thereon. The interior of the rack 40 is housed, as well as a plurality of heating assemblies 81.

The chassis 20 is in the form of a cube in this embodiment for receiving associated control elements and for connection to the outside world. The chassis 20 has at least one top plate 21, a front panel 22, and a rear panel 24. In addition, the chassis 20 further includes a pair of safety buttons 211, 212 that are disposed on the top plate 21. The operator needs to press the pair of safety buttons 211, 212 simultaneously with both hands to activate the lifting mechanism 60 to lower the heating assembly 81 to ensure safety.

The carrier frame 40 includes a top support 42 and a pair of side supports 41 to support the top support 42. The side support member 41 and the top support member 42 of the embodiment are both in a plate shape, and the pair of side support members 41 are respectively located on two sides of the top support member 42. However, the present invention is not limited thereto. For example, the side supports may be columnar bodies, and the number of the side supports may be four, two and two on the two sides of the top support member 42, respectively, supporting the top support member 42.

The lifting mechanism 60 has a power element 62 that is disposed on the top support 42. The power element 62 of the present embodiment may be a pneumatic device provided with a plurality of solenoid valves 620. However, the invention is not limited thereto, and for example, the power element may be an electric motor or a hydraulic device. The lifting mechanism 60 also has a lifting rod 621 that extends downwardly from the power element 62 and that extends into the carrier frame 40. The solenoid valve 620 of the power element 62 is used to control the movement of the lifting rod 621 to rise or fall.

The lifting mechanism 60 further includes a pair of guiding assemblies 61. The pair of guiding assemblies 61 are slidably coupled to the top support 42 and coupled to the adjustable carrier 43 to guide the adjustable carrier 43 to rise smoothly. Or drop.

In this embodiment, the lifting rod 621 of the lifting mechanism 60 is connected to the adjustable carrier 43. One of the features of the present invention is that the adjustable carrier 43 has a plurality of connecting portions 430. The heating assemblies 81 are disposed below the adjustable carrier 43 and the top end of each heating assembly 81 is detachably coupled to one of them. The connecting portion 430, whereby the heating assembly 81 is selectively disposed at different positions of the adjustable carrier plate 43. The connecting portion 430 of this embodiment is a through hole penetrating the adjustable carrier 43. However, the invention is not limited to For example, it may be a connection manner such as a screw lock, a clamp, a tight fit, or the like.

Please refer to FIG. 2 and FIG. 3. FIG. 3 is another perspective view of the plastic hot melt machine of the present invention. The heating unit 81 of the present embodiment is described in detail below. In order to make the position of the heating assembly 81 more flexible, the heating assembly 81 includes an adapter joint 811, a connecting rod 812, a holding seat 813, and a heating head 814. The top end of the adapter joint 811 is detachably connected to one of the connecting portions 430 of the adjustable carrier plate 43 (refer to FIG. 1 ). In this embodiment, the adapter joint 811 is locked by a manual nut 8112 . The top screw. The link 812 is coupled to the adapter joint 811. The connecting rod 812 is disposed under the adjustable carrier 43 . The holding base 813 is disposed at the bottom end of the connecting rod 812 . The heating head 814 is disposed on the holding base 813 . The adapter joint 811 has a slot-shaped adjustment hole 8110, and the tip end of the link 812 can be located at different positions within the adjustment hole 8110. The holder 813 is connected to the bottom end of the connecting rod 812. The holding seat 813 of the embodiment can be locked to the connecting rod 812 by a screw. Thereby, the joint joint 811 and the retaining seat 813 can be adjusted to different angles, and it is more convenient to adjust the position and height of the heating head 814.

According to the above arrangement, the positions of the heating assemblies 81 can be adjusted according to the requirements of different workpieces, so that the plastic hot melt machine 100 can be applied to different workpieces. Compared with the prior art, a machine is often only applicable to workpieces of one product; the invention does not require multiple sets of hot-melt fixtures to fix different workpieces, can reduce the number of hot-melt fixtures, and reduce production and processing costs.

Referring to FIG. 2A, a cross-sectional view of the heating assembly 81 of the present invention taken along line IIA-IIA of FIG. The heating head 814 of this embodiment has a thermal head 8141, a heating core 8142, and a casing 8143 covering the thermal head 8141. The upper end of the thermal head 8141 has a groove shape. The heating core 8142 is inserted at the upper end of the thermal head 8141, and is connected to the power source, the ground, and the temperature by a plurality of wires. The heating core 8142 directly heats the thermal head 8141, and the heating core 8142 is further provided with a temperature sensor 814t to detect the temperature. Compared with the prior art, the embodiment saves the copper block and adopts the internal heat structure, which has higher heating efficiency, less power consumption, shorter heating waiting time and longer service life. In addition, each of the heating components 81 of the embodiment preferably uses a single chip controller (single chip) Microcontroller), or microcontroller, can control the movement of the entire process, compensate for temperature and control temperature for individual parts, and can be applied to automated production needs. Multiple heating heads 814 can be heated to different temperatures at the same time.

Referring to FIG. 2, the front panel 22 can be provided with a plurality of thermometers 222, 224, and a time meter 223. The number of thermometers is matched with the number of heating assemblies 81 to correspondingly display the temperature of the heating head 814. The time meter 223 can display the time at which the heating assembly 81 is applied to the workpiece W.

The plastic hot melt machine 100 of the present embodiment further includes a positioning pressing rod 83 for pressing the workpiece W while processing the workpiece W. The positioning pressing rod 83 includes an adapter joint 831 and a pressing rod 832. The top end of the adapter joint 831 is detachably coupled to one of the connecting portions 430 of the adjustable carrier plate 43 (refer to FIG. 1). In this embodiment, a manual nut 8312 is used to lock a top end of the adapter joint 831. Screw. The adapter joint 831 has a slot-shaped adjustment hole 8310, and the top end of the pressure rod 832 can be located at different positions within the adjustment hole 8310.

Please refer to FIG. 1 and FIG. 4. FIG. 4 is a rear view of the plastic hot melt machine of the present invention. In order to cooperate with automated production, this embodiment may further include a power bed 45 and a mounting platform 46 placed on the power bed 45. The power bed 45 is provided with a transmission unit 452 to drive the mounting platform 46. The top surface of the receiving platform 46 can be placed with a tray base 47, and the workpiece W is fixed in the tray base 47. In conjunction with the power bed 45, the top plate 21 of the present embodiment may preferably be provided with a plurality of assembly holes 210 for the power bed 45 to be adjustably placed at different positions. With the above arrangement, the power bed 45 can be set with the computer, and when the workpiece W and the tray base 47 are placed and the switch is activated, it is automatically moved to the position to be processed. Further, it may be set to automatically drive the above-described heating assembly 81 down to thermally fuse the workpiece W. After the hot melt processing, the heating unit 81 is raised, and finally the workpiece W is withdrawn from the power bed 45, thereby achieving automatic production.

This embodiment is safe for work and may further include a tray sensor 25 to detect the tray base 47. One possible implementation is that the tray sensor 25 can be a metal detector and the tray sensor 25 can be disposed on the top plate 21. Pallet base 47 It can be made of metal. If the tray base 47 is not sensed, the operator cannot lower the heating assemblies 81. At the same time, when the above-described safety buttons 211, 212 are pressed, a warning sound can be further issued.

In addition, as shown in FIG. 1, the embodiment may further include a safety sensor 48 to sense whether the processing area located inside the carrier frame 40 is clear. In a possible implementation, the safety sensor 48 can be an infrared sensor. If the operator's hand does not leave the processing area, the operator cannot activate the heating elements 81.

Referring to FIG. 4 again, the rear panel 24 of the chassis 20 of the present embodiment is provided with a power switch 241, a power socket 242, and a gas pressure regulating valve 243.

Please refer to FIG. 5, which is a system block diagram of a plastic hot melt machine of the present invention. Regarding the gas passage of the plastic hot melt machine 100 of the present embodiment, as shown by the hollow arrow in the figure, after the air is compressed, the compressed air is sent to the air pressure regulating valve 243 for pressure regulation and oil-water separation, and then respectively passed through a Air source pressure detector 243s and lifting mechanism 60. The air source pressure detector 243s transmits a signal to a microprocessor 200 to confirm whether gas has been detected. The microprocessor 200 can be disposed inside the chassis 20, and the microprocessor 200 controls the lifting mechanism 60 by a solenoid valve driver 620d, mainly controlling the opening and closing of the electromagnetic valve 620, thereby driving the heating assembly 81 to rise or fall. .

Regarding the electrical path of the plastic hot melt machine 100 of the present embodiment, the microprocessor 200 receives the signals of the tray sensor 25, the safety sensor 48, and the safety buttons 211, 212 as indicated by solid arrows. In this embodiment, a manipulation interface device 202, such as a computer, is preferably provided as an operation and control with the microprocessor 200, for example, the operator can set processing parameters such as temperature, hot melt time, etc., and can Display various data, such as the number of processing, temperature setting record, etc. The manipulation interface device 202 can transmit the relevant signals to the thermometers 222, 224 and the time meter 223. It is also possible to connect an input device 204, such as a bar code reader, to input the code of each workpiece as a record.

The microprocessor 200 is also electrically connected to a heat generating driver 814d to drive the above heating. The head 814 receives the signal of a temperature sensor 814t for detecting the temperature of the heating head 814. In addition, the microprocessor 200 is electrically connected to a servo driver 452d of the transmission unit 452 and drives the servo motor 452m of the transmission unit 452. Thereby, the mounting platform 46 and the tray base 47 are moved. Furthermore, the microprocessor 200 can be electrically connected to a cylinder position detector 621s to detect the state of the lift rod 621.

In summary, the beneficial effects of the present invention are at least:

1. The plastic hot melt machine 100 has an adjustable carrier plate 43 and a heating assembly 81, which can adjust the position of the heating assemblies 81 in accordance with the requirements of different workpieces. The embodiment can be applied to different workpieces, reduce the number of hot-melt fixtures, solve the problems of the existing hot-melt fixtures, and reduce the production and processing costs.

Second, the structure of the heating assembly 81 can further fine-tune the position and height of the heating head 814; further, the heating assembly 81 adopts an internal heating structure, which has higher heating efficiency, less power consumption, shorter heating waiting time, and longer service life.

3. The plastic hot melt machine 100 includes a power bed 45 and a mounting platform 46 disposed above the power bed 45, whereby the position of the tray base 47 can be adjusted and can be automated.

4. The plastic hot melt machine 100 is provided with multiple safety protection devices, for example, a tray sensor 25, a safety sensor 48, a gas source pressure detector 243s, and the like.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent technical changes made by using the present specification and the contents of the drawings are included in the protection scope of the present invention. .

100‧‧‧Plastic hot melt machine

20‧‧‧Chassis

21‧‧‧ top board

210‧‧‧Assembled holes

211, 212‧‧‧ security button

22‧‧‧ front panel

24‧‧‧ rear panel

40‧‧‧ Carrying rack

41‧‧‧Side support

42‧‧‧Top support

43‧‧‧Adjustable carrier

430‧‧‧Connecting Department

45‧‧‧Power bed

452‧‧‧Transmission unit

46‧‧‧Installation platform

47‧‧‧Tray base

48‧‧‧Safety sensor

60‧‧‧ Lifting mechanism

61‧‧‧Guide components

62‧‧‧Power components

620‧‧‧Solenoid valve

81‧‧‧heating components

W‧‧‧Workpiece

Claims (10)

A plastic hot melt machine includes: a casing; a carrying frame disposed on the chassis; a lifting mechanism disposed on the carrying frame, the lifting mechanism having a lifting rod, the lifting rod extending to the carrying machine An adjustable carrier plate disposed inside the carrier frame, the lifting rod of the lifting mechanism is connected to the adjustable carrier plate, the adjustable carrier plate has a plurality of connecting portions; and a plurality of heating components are disposed Below the adjustable carrier, the top end of each of the heating assemblies is detachably coupled to one of the connections. The plastic hot melt machine of claim 1, wherein the load bearing frame comprises a top support member and a plurality of side support members for supporting the top support member, the lift mechanism having a power component, the power component being disposed on On the top support. The plastic hot melt machine of claim 2, wherein the lifting mechanism further comprises a pair of guiding assemblies slidably coupled to the top support and coupled to the adjustable carrier. The plastic hot melt machine of claim 1, wherein the heating assembly comprises a connecting rod, a holding seat, and a heating head, the connecting rod is located below the adjustable carrier, and the holding seat is disposed on the connecting rod At the bottom end, the heating head is disposed on the holding seat. The plastic hot melt machine of claim 4, wherein the heating assembly further comprises an adapter joint, the top end of the adapter joint being detachably coupled to one of the connecting portions of the adjustable carrier, the connecting rod In the transfer joint. The plastic hot melt machine of claim 4, wherein the heating head has a thermal head, a heating core, and an outer casing covering the thermal head, the heating core is inserted into the upper end of the thermal head, and the heating The core directly heats the thermal head. The plastic hot melt machine of claim 1, further comprising a power bed, a mounting platform disposed on the power bed and a tray base disposed on the mounting platform, the power bed being provided with a transmission unit for driving the mounting platform. The plastic hot melt machine of claim 7, wherein the chassis comprises a top plate, the top plate being provided with a plurality of assembly holes, the power carrier bed being selectively fixable to a plurality of the assembly holes. The plastic hot melt machine of claim 7, further comprising a tray sensor for detecting the tray base and a safety sensor to sense whether a processing area is empty. The plastic hot melt machine of claim 1, further comprising a positioning pressing rod for pressing the workpiece, the positioning pressing rod comprising an adapter joint and a pressing rod, the top end of the adapter joint being detachably connected In one of the connecting portions of the adjustable carrier, wherein the adapter joint has a slot-shaped adjusting hole, the top end of the pressing rod can be located at different positions in the adjusting hole.